// Copyright (c) 2023 Huawei Technologies Co., Ltd
// All rights reserved.
//
// Licensed under the BSD 3-Clause License  (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// https://opensource.org/licenses/BSD-3-Clause
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

#include "op_plugin/AclOpsInterface.h"
#include "op_plugin/OpApiInterface.h"
#include "op_plugin/utils/op_api_common.h"

namespace op_api {

at::Tensor& log_out(const at::Tensor& self, at::Tensor& result) {
    DO_COMPATIBILITY(aclnnLog, acl_op::log_out(self, result));
    if (!result.is_same(self)) {
        at::ScalarType expext_dtype = self.scalar_type();
        if (isIntegralType(self.scalar_type(), true)) {
        expext_dtype = at::kFloat;
        }
        if (isFloatingType(result.scalar_type()) ||
            isComplexType(result.scalar_type())) {
        expext_dtype = result.scalar_type();
        }
        at_npu::native::OpPreparation::check_tensor({self}, result, expext_dtype, self.sizes());
    }

    at_npu::native::OpPreparation::check_memory({self}, {result});
    EXEC_NPU_CMD(aclnnLog, self, result);
    at::namedinference::propagate_names(result, self);
    return result;
}

at::Tensor log(const at::Tensor& self) {
    DO_COMPATIBILITY(aclnnLog, acl_op::log(self));
    // construct the output tensor of the NPU
    at::ScalarType expext_dtype = self.scalar_type();
    if (isIntegralType(self.scalar_type(), true)) {
        expext_dtype = at::kFloat;
    }
    at::Tensor result = at_npu::native::OpPreparation::apply_tensor_without_format(
        self.sizes(),
        self.options().dtype(expext_dtype));

    // calculate the output result of the NPU
    EXEC_NPU_CMD(aclnnLog, self, result);
    at::namedinference::propagate_names(result, self);
    return result;
}

at::Tensor& log_(at::Tensor& self) {
  DO_COMPATIBILITY(aclnnInplaceLog, acl_op::log_(self));
  EXEC_NPU_CMD(aclnnInplaceLog, self);

  return self;
}

}
